Layout of systems for vibration isolation and earthquake protection

For the design and layout of systems for vibration isolation there have to be distinguished two basic cases in general:

• active isolation
  
  Here the dynamic excitation has its origin on the component which has to be isolated.
  Typical applications are machines with rotating or oscillating masses causing unbalances which are disturbing the surrounding environment.
  
  
• passive isolation
  
  In this case the vibration isolation system shall protect the isolated component from disturbances which will be induced from other aggregates outside.
  Examples for this can be found on the field of tool machines like roll grinders. There a small disturbance might harm the production process very severe.
  But also the protection of buildings or building parts against vibrations e.g. from railways gets a higher relevance considering the environmental care.

The layout and calculation of systems for vibration control is one of our main scopes of work.

To offer our clients technically and economically optimized solutions we are in permanent contact with the leading companies supplying vibration isolation systems.

Following different systems have to be considered:

• systems with helical springs (point support)
• systems with air springs (point support)
• systems on plastics basis (area support)

Each system is optimized for a special range of supporting frequency. So the choice of a specific system depends on the actual application.

Spring elements which possess a low inner damping can be combined with seperate or integrated damping systems to minimize the deflection amplitudes of the mass-spring-system.

To give you more detailed information on this subject we kindly ask you to contact us directly.

We would like to do following for you:

• Layout of a spring-damper-system
• Performance of delivery inquiries with different manufacturers
• Independent technical and economical check of the single offers
• Dynamic and Structural analysis of the vibration isolated component
• Complete set of documentation for civil works

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last modification: 24.02.2000